Does strength have to do with shooting power?

i am not very experienced in shooting, but i can shoot the puck fairly fast and right in the corner of the nets, the weird thing is i have better slap shot accuracy than wrist shot accuracy .. when i do wrist shot it is slow ... but when i do slap shot it goes fast, does that mean that slapshot needs more strength? than mechanics, while wrist shot needs more mechanics than strength? i have a really strong shoulder and hips, i can make a connection for slapshot ... throwing a football .. they both need you to turn you're hips and need shoulder strength ... would that help me?